1939672 has 32 divisors (see below), whose sum is σ = 4377600. Its totient is φ = 787104.

The previous prime is 1939657. The next prime is 1939673. The reversal of 1939672 is 2769391.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1939673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153 + ... + 1975.

It is an arithmetic number, because the mean of its divisors is an integer number (136800).

2^1939672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1939672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2188800).

1939672 is an abundant number, since it is smaller than the sum of its proper divisors (2437928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1939672 is a wasteful number, since it uses less digits than its factorization.

1939672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855 (or 1851 counting only the distinct ones).

The product of its digits is 20412, while the sum is 37.

The square root of 1939672 is about 1392.7210776031. The cubic root of 1939672 is about 124.7123411938.

The spelling of 1939672 in words is "one million, nine hundred thirty-nine thousand, six hundred seventy-two".